Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
risible is an adjective meaning "arousing or provoking laughter". It carries one recorded sense.
arousing or provoking laughter
“an amusing film with a steady stream of pranks and pratfalls”
“an amusing fellow”
“a comic hat”
“a comical look of surprise”
“funny stories that made everybody laugh”
“a very funny writer”
“it would have been laughable if it hadn't hurt so much”
“a mirthful experience”
“risible courtroom antics”
Definitions, synonyms and semantic relations for risible come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.